.mt-10{
    margin-top:10px;
}
.mb-10{
    margin-bottom:10px;
}
.pt-10{
    padding-top:10px;
}
.pos-r{
    position: relative;
}
.pos-a{
    position: absolute;
}
.red{
    color:red;
}
.green{
    color:green;
}
.grey-0{
    color:lightgrey;
}
.grey-1{
    color:grey;
}
.grey-2{
    color:darkgrey;
}
.overflow-scroll{
    overflow: scroll;
}
.h200{
    height:200px;
}
.h300{
    height:300px;
}